<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

<div id="app">
  <span v-html="link"></span>
</div>
<script src="https://unpkg.com/vue/dist/vue.min.js"></script>
<script>
  var app = new Vue({
    el: '#app',
    data: {
      link: '<a href="#">link</a>'
    }
  })
</script>
</body>
</html>